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T-Mobile G1 Teardown 


T-Mobile G1 Teardown 

step 1 - 

• The G1 has a lot of meaning to the "1" in its name. Not only 
is it the first phone to sport Google's Android OS, it's: 

• the first phone to use T-Mobile's 3G network. 

• HTC's first capacitive touchscreen phone. 
HTC's first trackball phone. 

• HTC's second attempt at a 5-row keyboard 
(correct me if I'm wrong). 

• We have aggregated information from 
various articles to aid in our teardown. 
These include Bob Widenhofer's article fe 
atured on TechOnline, Nikkei Electronics 
Teardown Squad featured on TechOn, and 
of course, our own sources (Thank you!). 


©2010 iFixit — CC BY-NC-SA 

Page 1 of 5 

T-Mobile G1 Teardown 

Step 2 

• The user interface of this phone is also another winner. 
Google's engineers, however, have been totally in 
novative in giving users: 

• a pull-down notification bar. 

• a slide-out menu. 

3 different customizable desktops. 

• The backgrounds even slightly move when you switch 
desktops, giving it a sort of, 3D effect. Very cool. 

^s^^ w^ 

step 3 

• The T-Mobile G1 was a mind-blowing experience to 
crack open. There's an insane number of parts, and the wa 
y they put it together seems, well, complex. Make sure 
you give the sliding mechanisms a peek near the 

• Finally, the moment you've all been waiting for. The ba 
ck of the casing, showcases swooping action (we're se 
riously too in love). 

• The translational springs on this puppy are strong as 
#%#^. But it needs to be so, since it has to drive a large 
screen around an arc. It's interesting to note how much ef 
fort HTC seems to have put in to produce a clean 
swooping action. Perhaps we're overthinking this. 

©2010 iFixit — CC BY-NC-SA 

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T-Mobile G1 Teardown 

j^-^-A I Power Amjj 
^^rf"^ (Quad- band 




Block Diagram Legend 

^^^^^1 Processor 

I I RF Componems 

^ Power Management 



^ Connectivity ICs 

I LCD/Touchscreen Components 

^ Audio Components 

H Storage 

■ Extra Feature ICs 

Step 4 

• For starters though, we introduce to you, the block 

• The Qualcomm I\/ISI\/I7201A, which was 
previously used in later US iterations of the Touch 
Diamond and the Touch Pro, comes full force in 

• Similar to the BlackBerry Storm, the GPS and 
audio processing components are embedded into 
the processor. 

• Fortunately, HTC has had much experience using 
the processor, although it runs a brand new OS. 

• Running alongside the processor is the 
transceiver and power management ICs, 
Qualcomm RTR5285, and Qualcomm PM7540, 


• This part is pretty cool, because housed within the 
screen casing is four large parts. 

• On the front of the actual casing is the capacitive touch 
panels, with Synaptics handling the controllers and 
everything else touchscreen-related. 

• An interesting feature of this phone are the dual 
vibration motors. One motor is mounted on the display 
module, and the other on the main PCB. 

©2010 iFixit — CO BY-NC-SA 

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T-Mobile G1 Teardown 

Power Amp 


Power Amp 

Connection kf^ 

To Camera H 3 

Module n M 

Connection for H M 
Battery ^^^ 


\-CL^^ "»."""' L W?^ 


^ Y/ ill III^^S'-*^ ;7 

■\_ Button for 
■ /" Camera 


j Connection 

" liOrw^ 

To Display 


^^ :. , . .:_^^g|J|p|^ 

^" To Display 


Step 6 

• There are two main PCBs housing most of the 
components. The main PCB is shown at left, while the 
"Chin" PCB is shown on step 9. 

• The NAND Flash + DDR SDRAM is handled by a 
Samsung MCP. 

• SMSC provides the USB PHY handling the connection 
from the processor to the PC. 


• As shown, Avago provides both GSM and UMTS power 
amplifiers (ACPM-7381 & ACPM-7391). 

• TriQuint provides their regular GSM power amplifiers 
(TQS 7M5008). 

• Asahi Kasei makes an interesting appearance with the 
first (to our knowledge) appearance of a compass IC. 

©2010 iFixit — CC BY-NC-SA 

Page 4 of 5 

T-Mobile G1 Teardown 


• Lastly, we move on to the "chin" PCB. 

• Texas Instruments provides the Bluetooth and Wi-Fi 
chips, both appearing on this PCB. 

• The trackball is the same module used on nearly every 
BlackBerry (except the upgraded trackball found on the 


If you have questions, comments, concerns, 
humorous anecdotes, be sure to let us know 
in the comments or through email 
( Also be sure to 
visit the wM for more pictures! Thanks! 


©2010 iFixit — CC BY-NC-SA 

Page 5 of 5